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ACL
2012
12 years 1 months ago
Strong Lexicalization of Tree Adjoining Grammars
Recently, it was shown (KUHLMANN, SATTA: Tree-adjoining grammars are not closed under strong lexicalization. Comput. Linguist., 2012) that finitely ambiguous tree adjoining gramm...
Andreas Maletti, Joost Engelfriet
IJAC
2010
118views more  IJAC 2010»
13 years 8 months ago
Algebraic Characterization of Logically Defined Tree Languages
We give an algebraic characterization of the tree languages that are defined by logical formulas using certain Lindstr
Zoltán Ésik, Pascal Weil
JOLLI
2006
101views more  JOLLI 2006»
13 years 11 months ago
A Note on the Expressive Power of Probabilistic Context Free Grammars
We examine the expressive power of probabilistic context free grammars (PCFGs), with a special focus on the use of probabilities as a mechanism for reducing ambiguity by filtering ...
Gabriel G. Infante López, Maarten de Rijke
PODS
2010
ACM
170views Database» more  PODS 2010»
14 years 4 months ago
Simplifying XML schema: single-type approximations of regular tree languages
XML Schema Definitions (XSDs) can be adequately abstracted by the single-type regular tree languages. It is wellknown, that these form a strict subclass of the robust class of re...
Wouter Gelade, Tomasz Idziaszek, Wim Martens, Fran...